Three-station multi-process integrated automatic spraying system

Abstract

The invention provides a three-station multi-process integrated automatic spraying system which comprises a transfer station, a first transfer station, a second transfer station, a third transfer station and a spraying station are arranged on the periphery of the transfer station, and the transfer station, the first transfer station and the second transfer station are each provided with a first conveyor in front-back reciprocating transmission. The third transfer station and the spraying station are each provided with a second conveyor which conducts left-right reciprocating transmission, the transfer station is further provided with a third conveyor which ascends and descends vertically, and the third conveyor is located below the first conveyor, penetrates through the first conveyor after vertically moving upwards and conducts left-right reciprocating transmission. Through cooperation of the transfer station and the three transfer stations, multiple spraying procedures of workpieces are completed on the same spraying station, the occupied space is small, and the equipment cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying equipment, and in particular to a three-station multi-process integrated automatic spraying system. Background Art

[0002] Workpieces, such as projectiles, are sprayed with a variety of coatings on their surfaces, including primer, thermal protection, and topcoat, to form a corrosion-resistant protective film. Existing multi-station spraying equipment typically involves one spraying step at one station, after which the workpiece is transferred to the next station for the next spraying step, and so on. This results in long production lines and significant space requirements. Furthermore, each process requires a dedicated spray booth. Paints and their thinners are flammable and explosive, leading to widespread and potentially significant property losses. Furthermore, these systems require monitoring and explosion-proofing mechanisms, resulting in high costs.

[0003] Chinese patent document CN209490974U discloses a multi-station device for spraying complex parts. The device uses a motor to drive a transmission belt, which in turn drives a pulley at the station to rotate, thereby achieving the workpiece's self-rotation. A spraying station is set at the rotating pulley. During the spraying process, the finished workpiece is removed and a new workpiece to be sprayed is installed on the other side of the device. If the workpiece is manually loaded and unloaded, there is a safety hazard of human-machine interaction due to the proximity to the spraying station. Moreover, this device is mostly suitable for spraying small-diameter workpieces, but not for large-diameter workpieces. Large-diameter workpieces are also not easy to feed and unload due to factors such as size and weight. Summary of the Invention

[0004] The present invention proposes a three-station multi-process integrated automated spraying system. Through the cooperation of the transfer station and three transfer stations, multiple spraying processes of the workpiece can be completed at the same spraying station, which takes up less space and saves equipment costs.

[0005] The technical solution of the present invention is implemented as follows: a three-station multi-process integrated automated spraying system includes a transfer station, a first transfer station is provided at the front end of the transfer station, a second transfer station is provided at the rear end, a third transfer station is provided on the left side of the transfer station, and a spraying station is provided on the right side. The transfer station, the first transfer station and the second transfer station are all provided with a first conveyor with a front-to-rear reciprocating transmission for mutual transfer of workpieces between the first transfer station and the transfer station and between the second transfer station and the transfer station. The third transfer station and the spraying station are both provided with a second conveyor with a left-right reciprocating transmission. The transfer station is also provided with a third conveyor with a vertical lifting transmission. The third conveyor is located below the first conveyor, moves vertically upward and passes through the first conveyor, and performs left-right reciprocating transmission for mutual transfer of workpieces between the third transfer station and the transfer station and between the spraying station and the transfer station.

[0006] Furthermore, it also includes a positioning tool for supporting the workpiece, the positioning tool includes a transfer plate, the upper end of the transfer plate is evenly distributed with positioning mechanisms along the circumference, the positioning mechanism is rotatable and detachably connected to the rotating plate, a transmission gear is fixed on the positioning mechanism, and a driving gear driven by a first motor is provided on the spraying station. When the transmission gear moves to the driving gear, the driving gear engages with the transmission gear and drives the transmission gear to rotate, and the transmission gear drives the positioning mechanism to rotate.

[0007] Furthermore, positioning grooves with different inner diameters are concentrically arranged on the transfer plate, and limit blocks are evenly distributed along the circumference in the positioning grooves.

[0008] Furthermore, a vertical lifting rotating mechanism is provided on the spraying station, and the rotating mechanism includes a positioning plate that revolves in a circumferential direction, a connecting column is provided on the positioning plate, and a connecting hole that cooperates with the connecting column is provided on the transfer plate. The transfer plate is transferred to the positioning plate, and the connecting column is inserted into the connecting hole, and the positioning plate drives the transfer plate to revolve in a circumferential direction.

[0009] Furthermore, the positioning mechanism includes a column, the lower end of the column is detachably connected to the transfer plate, and a workpiece clamping assembly is rotatably connected to the column. The workpiece clamping assembly includes a positioning chassis and a top clamping assembly. The positioning chassis is rotatably connected to the column, and the workpiece is placed on the positioning chassis. The top clamping assembly seals the upper end of the workpiece and detachably fixes the workpiece to the positioning chassis.

[0010] Furthermore, an outer cylinder is fixed to the lower end of the positioning chassis, the outer cylinder is sleeved on the outside of the column, and is rotatably connected to the column through a bearing. The top clamping assembly includes a positioning top cover, and a vertical center column is fixed to the middle of the positioning top cover. The lower end of the center column slides through the positioning chassis and is placed in the outer cylinder. The lower end of the center column is a tapered end, and an annular groove is provided on the upper side of the tapered end. An elastic telescopic rod that cooperates with the annular groove is symmetrically fixed on the chassis. The end of the elastic telescopic rod close to the annular groove is a spherical end, and the vertical cross-section of the annular groove is an arc.

[0011] Furthermore, a loading station is provided at the front end of the first transfer station, and a unloading station is provided at the rear end of the second transfer station. Both the loading station and the unloading station are provided with a fourth conveyor that can be lifted vertically, and the fourth conveyor is transmitted backward after moving upward; the fourth conveyor is a chain conveyor, which includes two second transmission chains arranged at intervals, and the second transmission chain is used to transmit the workpiece backward.

[0012] Furthermore, the first conveyor is a roller conveyor, with adjacent rollers spaced apart. The third conveyor is a chain conveyor, which includes two first transmission chains spaced apart. The first transmission chains are parallel to the roller axis and move vertically up and down along the gaps between adjacent rollers.

[0013] Furthermore, a row of limiting rollers is provided on the edges of both sides of the first conveyor and the second conveyor to limit the transmission path of the transfer plate.

[0014] Furthermore, the spraying station is set in the spraying room, which is equipped with a spraying robot and a combustible gas concentration detection and alarm device. An automatic door is set at the position of the spraying room corresponding to the transfer station, and the spraying room is respectively connected to the exhaust gas treatment mechanism and the air intake mechanism.

[0015] Furthermore, the exhaust gas treatment mechanism includes an exhaust duct, a dry filter box, several activated carbon adsorption boxes and an adsorption fan connected in sequence, and the air inlet of the exhaust duct is connected to the lower side of the spray room; the air inlet mechanism includes an air supply fan, a constant temperature and humidity machine and an air inlet duct connected in sequence, and the air outlet of the air inlet duct is connected to the upper side of the spray room.

[0016] Beneficial effects of the present invention: The spraying system of the present invention transfers and temporarily stores multiple workpieces through the cooperation of a transfer station and three transfer stations, and completes multiple spraying processes of the workpieces, such as primer spraying, thermal protection spraying, topcoat spraying, etc., at the same spraying station, taking up less space and saving equipment costs.

[0017] The positioning tool of the present invention can install the small workpiece on the positioning mechanism in advance, and then the small workpiece is sent to the spraying station along with the positioning tool via the transfer station and the transfer station. After multiple spraying processes are completed, the small workpiece is unloaded together with the positioning tool via the transfer station and the transfer station, thereby improving the efficiency of the spraying process, avoiding the influence of the workpiece loading and unloading speed, and completely avoiding the contact between the worker and the sprayer, avoiding the safety risks of human-computer interaction.

[0018] The positioning tooling of the present invention has positioning grooves with different inner diameters concentrically arranged on the transfer plate. Through the cooperation of the transfer grooves and the limit blocks, the positioning of large workpieces with different diameters can be achieved. Moreover, the large workpieces are transferred synchronously with the positioning device, which is convenient for positioning the large workpieces in advance and is also beneficial to improving the spraying efficiency.

[0019] The loading and unloading stations of the present invention are both provided with a fourth conveyor that can be lifted vertically. The fourth conveyor cooperates with the transfer trolley to realize automatic loading and unloading of the positioning tooling with the workpiece, without the need for manual handling and loading and unloading of the workpiece.

[0020] The spray booth of the present invention monitors the combustible gas concentration in the dangerous area through a combustible gas concentration detection and alarm device. When the combustible gas concentration reaches the set upper limit, the machine is shut down and an alarm is issued, and the exhaust gas treatment mechanism and the air intake mechanism are started to reduce the concentration of hazardous substances in the working space to below the alarm concentration, thereby ensuring the inherent safety of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is the front view of the present invention; Figure 2 A top view of the present invention; Figure 3 A top view of the transfer station and each transfer station; Figure 4 This is a top view of the transfer station (without the transfer board); Figure 5 is a top view of the fourth conveyor; Figure 6 is a top view of the transfer plate; Figure 7 This is a top view of the spraying station; Figure 8 for Figure 7 Cross-sectional view of AA; Figure 9 for Figure 7 Left view of; Figure 10 This is the main view of the transfer station (with transfer board); Figure 11 It is a structural diagram of the positioning mechanism; Figure 12 Schematic diagram of the structure of the top clamping component.

[0023] Transfer station 1, first transfer station 2, second transfer station 3, third transfer station 4, spraying station 5, first conveyor 6, second conveyor 7, first transmission chain 8, transfer plate 9, positioning groove 10, limit block 11, large workpiece 12, small workpiece 13, positioning mechanism 14, connecting frame 15, locking screw 16, column 17, positioning chassis 18, outer cylinder 19, positioning top cover 20, center column 21, annular slot 22, elastic telescopic rod 23, pull ring 24, transmission gear 25, first motor 2 6, driving gear 27, rotating mechanism 28, base 29, positioning plate 30, inner gear ring 31, driving gear 32, second motor 33, connecting column 34, connecting hole 35, limiting roller 36, loading station 37, unloading station 38, second transmission chain 39, transfer trolley 40, spraying robot 41, automatic door 42, exhaust duct 43, dry filter box 44, activated carbon adsorption box 45, adsorption fan 46, air supply fan 47, constant temperature and humidity machine 48, air inlet duct 49, spraying room 50. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0025] The terms "front, back, left, right" and the like of the present invention are relative to Figure 2 The positional relationship shown.

[0026] Example 1 like Figure 2 and 3 As shown, a three-station multi-process integrated automated spraying system includes a transfer station 1, a first transfer station 2 is provided at the front end of the transfer station 1, a second transfer station 3 is provided at the rear end, a third transfer station 4 is provided on the left side of the transfer station 1, and a spraying station 5 is provided on the right side. The transfer station 1, the first transfer station 2 and the second transfer station 3 are all provided with a first conveyor 6 with a front-to-rear reciprocating transmission, which is used for mutual transfer of workpieces between the first transfer station 2 and the transfer station 1 and between the second transfer station 3 and the transfer station 1. The third transfer station 4 and the spraying station 5 are both provided with a second conveyor 7 with a left-to-right reciprocating transmission. The first conveyor 6 and the second conveyor 7 are both roller conveyors, and adjacent rollers are arranged at intervals. The roller conveyors are existing equipment.

[0027] like Figure 2 and 4 As shown, the transfer station 1 is also provided with a third conveyor for vertical lifting. The third conveyor is located below the first conveyor 6. After moving vertically upward, it passes through the first conveyor 6 and performs left and right reciprocating transmission. The third conveyor is a chain conveyor. The chain conveyor is an existing equipment and can be vertically lifted and lowered by a telescopic cylinder, a hydraulic cylinder, etc. The chain conveyor includes two first transmission chains 8 arranged at intervals. The first transmission chain 8 is parallel to the axial direction of the roller. The first transmission chain 8 is vertically lifted and lowered along the gap between adjacent rollers. After the first transmission chain 8 passes through the roller gap, it drives the workpiece to perform left and right reciprocating transmission, which is used for the mutual transfer of workpieces between the third transfer station 4 and the transfer station 1 and between the spraying station 5 and the transfer station 1.

[0028] Method for using the three-station multi-process integrated automatic spraying system: (1) The first workpiece is transported to the first transfer station 2, and the first transfer station 2 drives the first workpiece backward to the transfer station 1. After the third conveyor of the transfer station 1 moves up, it drives the first workpiece to the right and enters the spraying station 5 for spraying in the first process. After the spraying is completed, the spraying station 5 drives the workpiece to the left and sends it to the transfer station 1. The transfer station 1 drives the workpiece backward to send it to the second transfer station 3; (2) Send the second workpiece to the first transfer station 2, repeat the action in step (1), after the second workpiece returns to the transfer station 1, the transfer station 1 drives to the left and sends the second workpiece to the third transfer station 4; (3) Send the third workpiece to the first transfer station 2, repeat the action in step (1), after the third workpiece returns to the transfer station 1, the transfer station 1 drives forward to send the third workpiece to the first transfer station 1; (4) The second transfer station 3 drives forward to send the first workpiece to the transfer station 1, and the transfer station 1 drives rightward to send the first workpiece to the spraying station 5 for spraying in the second process. After spraying is completed, it returns to the second transfer station 3; the second workpiece of the third transfer station 4 is sent to the spraying station 5 via the transfer station 1 for spraying in the second process. After spraying is completed, it returns to the third transfer station 4; the third workpiece of the first transfer station 1 is sent to the spraying station 5 via the transfer station 1 for spraying in the second process. After spraying is completed, it returns to the first transfer station 1; (5) Repeat step (4) multiple times to complete the spraying of the remaining multiple processes of the three workpieces. When the last process is completed, the three workpieces are transferred to the second transfer station 3 after the last process is completed, and the sprayed workpieces are removed from the second transfer station 3; (6) Repeat steps (1) to (5) to spray the next round of workpieces.

[0029] This is a method of using the spraying system described in this embodiment. During the spraying process, the spraying order of the first workpiece, the second workpiece, and the third workpiece can be adjusted as needed. For example, after the spraying of the first workpiece is completed, the third workpiece is sprayed, etc., or the transfer station where the workpiece is located can be adjusted through the transfer station 1 as needed, etc.

[0030] Example 2 This embodiment is basically the same as embodiment 1, except that: a three-station multi-process integrated automatic spraying system also includes a positioning tool for supporting the workpiece, such as Figure 6As shown, the positioning fixture includes a transfer plate 9, on which are concentrically provided positioning grooves 10 of varying inner diameters. Within the positioning grooves 10 are uniformly distributed circumferentially, there are stoppers 11. The stoppers 11 are connected to the positioning grooves 10 by bolts and can be removed and installed as needed. Positioning grooves 10 of varying inner diameters correspond to large workpieces 12 of varying diameters (workpieces with larger diameters). The large workpiece 12 is placed within the positioning grooves 10, and the stoppers 11 position the inner or outer walls of the large workpiece 12 to prevent displacement during rotation. The coordination of the positioning grooves 10 and the stoppers 11 facilitates positioning and spraying of the large workpiece 12.

[0031] For small workpieces 13 (workpieces with smaller diameters), the above-mentioned positioning groove 10 has a larger inner diameter and is not suitable. Figure 3 、 6 As shown in Figure 10, the edge of the upper end of the transfer plate 9 is evenly distributed with positioning mechanisms 14 along the circumferential direction. The positioning mechanism 14 is rotatably and detachably connected to the rotating plate. The positioning groove 10 is located on the inner side of the positioning mechanism 14. A connecting frame 15 corresponding to the positioning mechanism 14 is fixed on the transfer plate 9. A locking screw 16 is screwed on the connecting frame 15. The positioning mechanism 14 includes a column 17. The lower end of the column 17 is placed in the connecting frame 15. The locking screw 16 is tightened. When the column 17 needs to be removed, the locking screw 16 is loosened and the column 17 is taken out from the connecting frame 15. The upper end of the column 17 is rotatably connected to the workpiece clamping assembly. Through the cooperation of the above structure, the positioning mechanism 14 is rotatably and detachably connected to the rotating plate.

[0032] like Figure 10-12 As shown, the workpiece clamping assembly includes a positioning chassis 18 and a top clamping assembly. The lower end of the positioning chassis 18 is fixed with an outer cylinder 19, which is sleeved on the outer side of the column 17 and is rotatably connected to the column 17 through a bearing. The top clamping assembly includes a positioning top cover 20, and a vertical center column 21 is fixed to the middle part of the positioning top cover 20. The lower end of the center column 21 slides through the positioning chassis 18 and is placed in the outer cylinder 19. The lower end of the center column 21 is a tapered end, and an annular groove 22 is provided on the upper side of the tapered end. Elastic telescopic rods 23 that cooperate with the annular groove 22 are symmetrically fixed on the chassis. The end of the elastic telescopic rod 23 close to the annular groove 22 is a spherical end, and the vertical section of the annular groove 22 is an arc.

[0033] A pull ring 24 is fixed to the upper end of the positioning cover 20. The lower end of the small workpiece 13 is placed on the positioning chassis 18. The positioning cover 20 is placed on the top of the small workpiece 13. The lower end of the center column 21 passes through the small workpiece 13 and the positioning chassis 18 in sequence and is placed in the outer cylinder 19. The spherical end of the elastic telescopic rod 23 is placed in the annular groove 22 to limit the upward movement of the center column 21 and achieve the compaction and fixation of the workpiece. The small workpiece 13 is positioned by the positioning chassis 18 and the positioning cover 20. At the same time, the upper and lower ends of the small workpiece 13 are blocked to avoid spraying the inside of the small workpiece 13. When the small workpiece 13 needs to be removed, the positioning cover 20 is pulled upward by the pull ring 24. The positioning cover 20 drives the center column 21 to move upward. The curved inner wall of the annular groove 22 causes the elastic telescopic rod 23 to contract and disengage from the annular groove 22.

[0034] like Figure 7 and 9 -11, a transmission gear 25 is fixed on the outer cylinder 19, and the transmission gear 25 is located below the positioning chassis 18. A first motor 26 that can move left and right is provided on the spraying station 5. The first motor 26 is driven to move left and right by a telescopic cylinder or a hydraulic cylinder. The first motor 26 is connected to the driving gear 27. When the transmission gear 25 moves to the driving gear 27, the first motor 26 moves left and drives the driving gear 27 to approach the transmission gear 25. The driving gear 27 is engaged with the transmission gear 25. The first motor 26 drives the driving gear 27 to rotate, and the driving gear 27 drives the transmission gear 25 to rotate. The transmission gear 25 drives the positioning mechanism 14 to rotate, and the positioning mechanism 14 drives the small workpiece 13 automatically.

[0035] like Figure 7-9 As shown, the spraying station 5 is provided with a vertically elevating rotary mechanism 28. The rotary mechanism 28 includes a vertically elevating base 29, which can be vertically elevated by a telescopic cylinder, hydraulic cylinder, or the like. A positioning plate 30 is rotatably connected to the base 29. An inner gear ring 31 is fixed to the inner side of the lower end of the positioning plate 30. The inner gear ring 31 meshes with a driving gear 32, which is connected to a second motor 33. The second motor 33 is fixed to the base 29. The second motor 33 drives the driving gear 32 to rotate, which in turn drives the inner gear ring 31 to rotate. The inner gear ring 31 drives the positioning plate 30 to orbit in a circumferential direction.

[0036] Connecting columns 34 are evenly distributed and fixed on the positioning disk 30 along the circumference, and connecting holes 35 that cooperate with the connecting columns 34 are provided on the transfer plate 9. The transfer plate 9 is transferred to the positioning disk 30, and the connecting columns 34 are inserted into the connecting holes 35. The positioning disk 30 drives the transfer plate 9 to revolve circumferentially.

[0037] When spraying a large workpiece 12, the lower end of the large workpiece 12 is placed in the positioning groove 10 corresponding to the transfer plate 9 according to its diameter, and then the spraying system described in Example 1 is used to transfer the large workpiece 12 to the spraying station 5, the base 29 is moved up, the connecting column 34 is inserted into the connecting hole 35, and the positioning plate 30 drives the rotating plate and the large workpiece 12 to revolve circumferentially to complete the spraying.

[0038] When spraying the small workpiece 13, the small workpiece 13 is fixed with a workpiece clamping assembly, and then the spraying system described in Example 1 is used to transfer the small workpiece 13 to the spraying station 5. The base 29 is moved up, the connecting column 34 is inserted into the connecting hole 35, and the positioning plate 30 drives the rotating plate and the small workpiece 13 to revolve circumferentially. When the small workpiece revolves to the driving gear 27, the driving gear 27 drives the transmission gear 25 to rotate, and the transmission gear 25 drives the small workpiece 13 automatically to complete the spraying.

[0039] like Figure 2 and 8 As shown, a row of limiting rollers 36 are fixed to the edges of both sides of the first conveyor 6 and the second conveyor 7. The row of limiting rollers 36 is arranged along the workpiece conveying direction to limit the transmission path of the transfer plate 9.

[0040] Example 3 This embodiment is basically the same as embodiment 1 or 2, except that: Figure 1 、 2 As shown in Figure 5, a loading station 37 is provided at the front end of the first transfer station 2, and a unloading station 38 is provided at the rear end of the second transfer station 3. Both the loading station 37 and the unloading station 38 are provided with a fourth conveyor for vertical lifting, and the fourth conveyor is transmitted backward after moving up; the fourth conveyor is a chain conveyor, which is an existing equipment. The chain conveyor includes two second transmission chains 39 arranged at intervals, which can be vertically lifted and lowered by telescopic cylinders, hydraulic cylinders, etc. The second transmission chain 39 is perpendicular to the roller axis of the first conveyor 6, and the second transmission chain 39 is used for backward transmission of the workpiece.

[0041] The width of the transfer plate 9 is greater than the width of the transfer cart 40. The spacing between the two second transmission chains 39 is greater than the width of the transfer cart 40 and smaller than the width of the transfer plate 9. The transfer plate 9 with the workpiece is placed on the transfer cart 40. The worker pushes the transfer cart 40 between the two second transmission chains 39. The two second transmission chains 39 move up synchronously, driving the transfer plate 9 to move up, and then the two second transmission chains 39 drive backward synchronously to send the transfer plate 9 to the first transfer station 2.

[0042] Example 4 This embodiment is basically the same as embodiment 1, 2 or 3, except that: Figure 1-3As shown, the spraying station 5 is located within a spray booth 50, which is equipped with a spray robot 41 and a combustible gas concentration detection and alarm device. The spray robot 41 is used to spray paint the workpiece. The robot 41 has spray guns of different calibers for separate spraying operations. An automatic door 42 is installed in the spray booth 50 at the location corresponding to the transfer station 1. The automatic door 42 is moved by a telescopic cylinder or hydraulic cylinder. During spraying, the automatic door 42 is closed. After spraying is complete, the automatic door 42 opens to facilitate the entry and exit of workpieces.

[0043] The spray booth 50 is respectively connected to an exhaust gas treatment mechanism and an air intake mechanism. The exhaust gas treatment mechanism includes an exhaust duct 43, a dry filter box 44, several activated carbon adsorption boxes 45 and an adsorption fan 46 connected in sequence. The air inlet of the exhaust duct 43 is connected to the lower side of the spray booth; the air intake mechanism includes an air supply fan 47, a constant temperature and humidity machine 48 and an air intake duct 49 connected in sequence. The air outlet of the air intake duct 49 is connected to the upper side of the spray booth.

[0044] The combustible gas concentration detection and alarm device is an existing equipment, which is used to detect the combustible gas concentration in the dangerous area in real time. When the combustible gas concentration reaches the set upper limit, it will shut down and issue an audible and visual alarm prompt. Then the adsorption fan 46 will start to exhaust the spray room from the bottom, reducing the concentration of dangerous substances in the spray room to below the alarm concentration, ensuring the inherent safety of the working environment. At the same time, the air supply fan 47 will start to supply fresh air to the spray room from the top.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-station multi-process integrated automated spraying system, characterized by: It includes a transfer station, a first transfer station is provided at the front end of the transfer station, a second transfer station is provided at the rear end, a third transfer station is provided on the left side of the transfer station, and a spraying station is provided on the right side. The transfer station, the first transfer station and the second transfer station are all provided with a first conveyor with a front-to-rear reciprocating transmission for mutual transfer of workpieces between the first transfer station and the transfer station and between the second transfer station and the transfer station. The third transfer station and the spraying station are both provided with a second conveyor with a left-right reciprocating transmission. The transfer station is also provided with a third conveyor with a vertical lifting transmission. The third conveyor is located below the first conveyor, moves vertically upward and passes through the first conveyor, and performs left-right reciprocating transmission for mutual transfer of workpieces between the third transfer station and the transfer station and between the spraying station and the transfer station.

2. The three-station multi-process integrated automated spraying system according to claim 1, characterized in that: It also includes a positioning tool for supporting the workpiece, the positioning tool includes a transfer plate, the upper end of the transfer plate is evenly distributed with positioning mechanisms along the circumference, the positioning mechanism is rotatable and detachably connected to the rotating plate, a transmission gear is fixed on the positioning mechanism, and a driving gear driven by a first motor is provided on the spraying station. When the transmission gear moves to the driving gear, the driving gear engages with the transmission gear and drives the transmission gear to rotate, and the transmission gear drives the positioning mechanism to rotate.

3. The three-station multi-process integrated automated spraying system according to claim 2, characterized in that: Positioning grooves with different inner diameters are concentrically arranged on the transfer plate, and limit blocks are evenly distributed in the positioning grooves along the circumference.

4. The three-station multi-process integrated automated spraying system according to claim 2, characterized in that: The spraying station is provided with a vertical lifting rotating mechanism, which includes a positioning plate that revolves in a circumferential direction. The positioning plate is provided with a connecting column, and the transfer plate is provided with a connecting hole that cooperates with the connecting column. The transfer plate is transferred to the positioning plate, and the connecting column is inserted into the connecting hole. The positioning plate drives the transfer plate to revolve in a circumferential direction.

5. The three-station multi-process integrated automated spraying system according to any one of claims 2 to 4, characterized in that: The positioning mechanism includes a column, the lower end of the column is detachably connected to the transfer plate, and a workpiece clamping assembly is rotatably connected to the column. The workpiece clamping assembly includes a positioning chassis and a top clamping assembly. The positioning chassis is rotatably connected to the column, and the workpiece is placed on the positioning chassis. The top clamping assembly seals the upper end of the workpiece and detachably fixes the workpiece to the positioning chassis.

6. The three-station multi-process integrated automated spraying system according to claim 5, characterized in that: An outer cylinder is fixed to the lower end of the positioning chassis, which is sleeved on the outside of the column and is rotatably connected to the column through a bearing. The top clamping assembly includes a positioning top cover, and a vertical center column is fixed to the middle of the positioning top cover. The lower end of the center column slides through the positioning chassis and is placed in the outer cylinder. The lower end of the center column is a tapered end, and an annular groove is provided on the upper side of the tapered end. Elastic telescopic rods that cooperate with the annular groove are symmetrically fixed on the chassis. The end of the elastic telescopic rod close to the annular groove is a spherical end, and the vertical cross-section of the annular groove is arc-shaped.

7. The three-station multi-process integrated automated spraying system according to claim 1 or 2, characterized in that: A loading station is provided at the front end of the first transfer station, and a unloading station is provided at the rear end of the second transfer station. Both the loading station and the unloading station are provided with a fourth conveyor that can be lifted vertically, and the fourth conveyor is transmitted backward after moving upward; the fourth conveyor is a chain conveyor, which includes two second transmission chains arranged at intervals, and the second transmission chain is used to transmit the workpiece backward.

8. The three-station multi-process integrated automated spraying system according to claim 1, characterized in that: The first conveyor is a roller conveyor, and adjacent rollers are spaced apart. The third conveyor is a chain conveyor, which includes two first transmission chains spaced apart. The first transmission chains are parallel to the roller axis and move vertically up and down along the gaps between adjacent rollers.

9. The three-station multi-process integrated automated spraying system according to claim 2, characterized in that: A row of limiting rollers is provided on the edges of both sides of the first conveyor and the second conveyor to limit the transmission path of the transfer plate.

10. The three-station multi-process integrated automated spraying system according to claim 1, characterized in that: The spraying station is set up in the spraying room, which is equipped with a spraying robot and a combustible gas concentration detection and alarm device. An automatic door is installed at the position of the spraying room corresponding to the transfer station. The spraying room is respectively connected to the exhaust gas treatment mechanism and the air intake mechanism.

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